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  • Users: usjbh
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  1. usjbh

    Hastelloy C-276 Chemical Reactions

    I have sintered H C-276 filter disks undergoing chemical compatibility soak tests in some 30 different solvents and chemicals. The 6M Nitric acid test solution turned a light green coloration after one hour exposure then turned light blue after 3 hours. One week later the blue color is getting a...
  2. usjbh

    Chemical Attack of Nickel Plating

    We are considering making a protective cover for a transducer electronics out of Polyphenyl Sulfide (PPS) that would require EMI shielding and a decorative finish. Nickel plating, specifically electroless, was proposed to do this. Additionally this cover is in an area where leaks or drips of...
  3. usjbh

    ASTM TP 316/316L

    What does the Tp in ASTM TP 316/316L stand for?
  4. usjbh

    What are the most U.V. stable carbo

    What are the most U.V. stable carbon fillers available for polymers? What company has the best technical information available pertaining to this subject?
  5. usjbh

    Titanium & 50 - 500 mM NaOH compatibilty

    How well does Titanium Gr 2 drawn capillary tubing, Gr 4 & 6Al4V alloy machined pump components perform with 50 - 500 mM Sodium Hydroxide to 40 degrees Celcius at pressures up to 5,000 psig? We have done some static compatability testing with 100 mM Potassium Hydoxide and extended life testing...

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